bbbb bbbs bblb bbls bbpr bibb bibi bibl bibs biis bili bill bils bilu bily bipp bips bipu birb biri birl birr birs biru biry bis- bisl bisp biss bisu bisy biys blip blir blis blls blsp blss blub blup blur blus bly- blys bpsu bril bris brlp brls brrr brrs brsb brsr brup brus bry- bspp bspr bsup bubb bubi bubs bubu buir buis buiu bulb buli bull buls bulu bups bur- burb buri burl burp burr burs buru bury busi buss busu busy buus buyi buyl buys buyu byil bysb bysi bysl bysp byss bysy byul i-by ibis ibly ibri ibss ibus ibuy ibyi iiii iiis iirs iisi iisp iisr iisu ilir ilis ill- illi illp ills illy ilpr ilus iluy ipil ippr ippy ipri ipsi ipsp ipss ipur ipus irbp irby iri- iril irip iris iriy irlb irps irri irrs irsp irul irus isbl isil isis isls isly ispr isps ispy isri isrp issi issp issr isss issu issy isup isus isyl isys iuiu iupp iuss lblr lbrs libr libs libu liii liir liis lilb lili lill lils lilu lily lip- lipb lipi lipl lipp lips lipu lipy liri lirl lirp lirr lirs liru liry lisi lisp liss lisu lisy lius liyl liyu llbs llll llps llyr lppl lprp lpss lpys lrps lrpu lrrr lrry ls-r lsbu lspl lspr lssp lssr lubs luby luis luli lull lulu lupi lupu luri lurs lury lusi luss luup luyi luys lyly lys- lysi lysl lyss pbil pblu pbrs pbsp pibb pibi piip pil- pili pill pils pilu pily pipi pipp pips pipy piri pirl pirr pirs piru piry pisi piss pisu pisy pius piys plbr plib plip plis plpp plri plsi plss plup plur plus ppib ppli pppp ppps ppru ppss ppur prbs pri- prii pris prlr prls prps prri prrs prsi prsl prss prus pruu prys psbr psil psip psis pspi pspp pspr psps psrp psy- psys publ pubs pubu puir puis puiu puli pull pulp puls pulu puly pupi pupl pups pupu pupy pur- purb puri purl purp purr purs puru pury pusi puss puy- puyi puys pyl- pyli pyll pypy pyr- pyri pyrl pyry pyss rbbb rbbr rbbs rbis rbsl rbsp rbss rib- ribs ribu riby riis rill rilp rilu rily ripi ripl ripp ripr rips riri rirs risi risp riss risu rius rlls rlys rpii rpls rpps rrrr rrsp rsbi rsis rslp rspb rsps rssl rubb rubi rubp rubs rubu ruby ruis rull ruly rupp rupy ruri rurp rurs ruru rusi russ rusu rusy ruyi ruyl ruys rybp ryip ryis rysy s-ib s-ii sbbs sbsi sbsp sbus sibi sibs sibu siby sil- sili sill sils silu sipi sipp sips sipy siri sirp sirr sirs siru sisi siss sisu sisy siui sius siyi siyu sl-i slbp slib slip slir sllp slpi slpp slps slrp slrs slsu slub slup slur slyp slys spby spib spip spir spis splp splr spls spps spri sprs spry spsp spss spui spur spus spy- spyr spys srby srib sris srps srsp srub ssbr ssby ssis sslp sspl ssps ssri ssrl ssrs sssb sssi ssss sub- subb subi subl subs suir suis sul- suli sull sulp sulu sup- supp supr sups supy sur- suri surp surr surs suru sury sus- susi susp suss susu susy suus suyi suyr suyu syis syl- syli syll syls syrs syry syss u-rp ubbi ubii ubir ubis ubli ubls ubly uipi uirr ulli ullr ully ulul ulus ulys upby upis uplb uppp uppu uppy upri upsi upsy upup urbi urbs urib uris uriu urls urri urry ursi urss ursu ursy urup urur urus usbl usbr usbs usip usis uslp uslu uspp usps ussb ussr usss ussu ussy usui usul usus uulu uuri uusi uuuu uyir ybbs ybry yili yill yips yirb yirr yiss ylli ylls ypir ypsi yrly ysby ysii yspi yssu ysyb yubu yuli yuls yulu yupi yups yuri yury yuyu yyyy